dc.creator | Periáñez Rodríguez, Raúl | es |
dc.date.accessioned | 2022-04-12T07:51:46Z | |
dc.date.available | 2022-04-12T07:51:46Z | |
dc.date.issued | 2002 | |
dc.identifier.citation | Periáñez Rodríguez, R. (2002). The enhancement of Ra-226 in a tidal estuary due to the overation of fertilizer factories and redissolution from sediments: Experimental results and a modelling study. Estuarine, Coastal and Shelf Science, 54 (5), 809-819. | |
dc.identifier.issn | 0272-7714 | es |
dc.identifier.uri | https://hdl.handle.net/11441/132056 | |
dc.description.abstract | The presence of 226Ra in a tidal estuary formerly affected by direct discharges from a phosphate fertilizer complex has been
investigated. In general, activity levels are lower than those detected when direct discharges were carried out. However,
there is still a clear contamination that can be attributed, presumably, to the disposal of Ra-containing phosphogypsum to
the river and to the redissolution of radionuclides from the contaminated sediments. A numerical model of the estuary has
been developed to investigate these hypothesis. The hydrodynamics are first calibrated and standard tidal analysis is
carried out. The dispersion model computes instantaneous currents from the so obtained tidal constants to speed up
simulations. The exchanges of 226Ra between water and the bottom sediment have been described in terms of kinetic
transfer coefficients. Model results are, in general, in agreement with observations. The simulation results support the
previous idea of sediments acting as a source of 226Ra to the water column. | es |
dc.description.sponsorship | Ministerio de Educación y Ciencia 1FD97-0900-CO2-01 | es |
dc.description.sponsorship | European Commission FIGE-CT-2000-00085 | es |
dc.format | application/pdf | es |
dc.format.extent | 11 | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Estuarine, Coastal and Shelf Science, 54 (5), 809-819. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | 226Ra | es |
dc.subject | Fertilizer | es |
dc.subject | Phosphogypsum | es |
dc.subject | Sediment | es |
dc.subject | Redissolution | es |
dc.subject | Tides | es |
dc.subject | Numerical model | es |
dc.subject | Dispersion | es |
dc.subject | Huelva estuary | es |
dc.title | The enhancement of Ra-226 in a tidal estuary due to the overation of fertilizer factories and redissolution from sediments: Experimental results and a modelling study | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/submittedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Aplicada I | es |
dc.relation.projectID | 1FD97-0900-CO2-01 | es |
dc.relation.projectID | FIGE-CT-2000-00085 | es |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0272771401908583?via%3Dihub | es |
dc.identifier.doi | 10.1006/ecss.2001.0858 | es |
dc.journaltitle | Estuarine, Coastal and Shelf Science | es |
dc.publication.volumen | 54 | es |
dc.publication.issue | 5 | es |
dc.publication.initialPage | 809 | es |
dc.publication.endPage | 819 | es |
dc.contributor.funder | Ministerio de Educación y Ciencia (MEC). España | es |
dc.contributor.funder | European Commission (EC) | es |